LPC804 datasheet(14/89 Pages) NXP

14 / 89 page

LPC804

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Product data sheet

Rev. 2.1 — 25 July 2023

14 of 87

NXP Semiconductors

LPC804

32-bit Arm Cortex-M0+ microcontroller

[1] Pin state at reset for default function: I = Input; AI = Analog Input; O = Output; PU = internal pull-up enabled (pins pulled up to full VDD

level); IA = inactive, no pull-up/down enabled; F = floating. For pin states in the different power modes, see Section 15.5 “Pin states in

different power modes”. For termination on unused pins, see Section 15.4 “Termination of unused pins”.

[2] 5 V tolerant pin providing standard digital I/O functions with configurable modes, configurable hysteresis, and analog input. When

configured as an analog input, the digital section of the pin is disabled, and the pin is not 5 V tolerant.

[3] 5 V tolerant pad providing digital I/O functions with configurable pull-up/pull-down resistors and configurable hysteresis; includes

high-current output driver.

[4] 5 V tolerant pad providing digital I/O functions with configurable pull-up/pull-down resistors and configurable hysteresis.

[5] See Figure 16 for the reset pad configuration. This pin includes a 20 ns glitch filter (active in all power modes). RESET functionality is

not available in deep power-down mode. Use the WAKEUP pin to reset the chip and wake up from deep power-down mode.

[6] The WKTCLKIN function is enabled in the PINENABLE0 register in the PMU. See the LPC804 user manual.

[7] The digital part of this pin is 3 V tolerant pin due to special analog functionality. Pin provides standard digital I/O functions with

configurable modes, configurable hysteresis, and an analog input. When configured as an analog input, the digital section of the pin is

disabled.

[8] Thermal pad for HVQFN33.

VDD

18 15 20

If VDDIO is present, VDD is the supply

voltage for the I/Os on the right side of the

package and the core voltage regulator. If

VDDIO is not present, VDD also supplies

voltage to the I/Os on the left side of the

package.

VDDIO

If present, it is the supply voltage for the

I/Os on the left side of the package.

VSS

16 33[8] C4

Ground.

Table 4.

Pin description

Symbol

Reset

state[1]

Type Description

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